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|
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/rockchip,power-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Rockchip Power Domains
maintainers:
- Elaine Zhang <zhangqing@rock-chips.com>
- Heiko Stuebner <heiko@sntech.de>
description: |
Rockchip processors include support for multiple power domains
which can be powered up/down by software based on different
application scenarios to save power.
Power domains contained within power-controller node are
generic power domain providers documented in
Documentation/devicetree/bindings/power/power-domain.yaml.
IP cores belonging to a power domain should contain a
"power-domains" property that is a phandle for the
power domain node representing the domain.
properties:
$nodename:
const: power-controller
compatible:
enum:
- rockchip,px30-power-controller
- rockchip,rk3036-power-controller
- rockchip,rk3066-power-controller
- rockchip,rk3128-power-controller
- rockchip,rk3188-power-controller
- rockchip,rk3228-power-controller
- rockchip,rk3288-power-controller
- rockchip,rk3328-power-controller
- rockchip,rk3366-power-controller
- rockchip,rk3368-power-controller
- rockchip,rk3399-power-controller
- rockchip,rk3568-power-controller
"#power-domain-cells":
const: 1
"#address-cells":
const: 1
"#size-cells":
const: 0
required:
- compatible
- "#power-domain-cells"
additionalProperties: false
patternProperties:
"^power-domain@[0-9a-f]+$":
$ref: "#/$defs/pd-node"
unevaluatedProperties: false
properties:
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"^power-domain@[0-9a-f]+$":
$ref: "#/$defs/pd-node"
unevaluatedProperties: false
properties:
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"^power-domain@[0-9a-f]+$":
$ref: "#/$defs/pd-node"
unevaluatedProperties: false
properties:
"#power-domain-cells":
const: 0
$defs:
pd-node:
type: object
description: |
Represents the power domains within the power controller node.
properties:
reg:
maxItems: 1
description: |
Power domain index. Valid values are defined in
"include/dt-bindings/power/px30-power.h"
"include/dt-bindings/power/rk3036-power.h"
"include/dt-bindings/power/rk3066-power.h"
"include/dt-bindings/power/rk3128-power.h"
"include/dt-bindings/power/rk3188-power.h"
"include/dt-bindings/power/rk3228-power.h"
"include/dt-bindings/power/rk3288-power.h"
"include/dt-bindings/power/rk3328-power.h"
"include/dt-bindings/power/rk3366-power.h"
"include/dt-bindings/power/rk3368-power.h"
"include/dt-bindings/power/rk3399-power.h"
"include/dt-bindings/power/rk3568-power.h"
clocks:
minItems: 1
maxItems: 30
description: |
A number of phandles to clocks that need to be enabled
while power domain switches state.
pm_qos:
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
maxItems: 1
description: |
A number of phandles to qos blocks which need to be saved and restored
while power domain switches state.
"#power-domain-cells":
enum: [0, 1]
description:
Must be 0 for nodes representing a single PM domain and 1 for nodes
providing multiple PM domains.
required:
- reg
- "#power-domain-cells"
examples:
- |
#include <dt-bindings/clock/rk3399-cru.h>
#include <dt-bindings/power/rk3399-power.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
qos_hdcp: qos@ffa90000 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffa90000 0x0 0x20>;
};
qos_iep: qos@ffa98000 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffa98000 0x0 0x20>;
};
qos_rga_r: qos@ffab0000 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffab0000 0x0 0x20>;
};
qos_rga_w: qos@ffab0080 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffab0080 0x0 0x20>;
};
qos_video_m0: qos@ffab8000 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffab8000 0x0 0x20>;
};
qos_video_m1_r: qos@ffac0000 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffac0000 0x0 0x20>;
};
qos_video_m1_w: qos@ffac0080 {
compatible = "rockchip,rk3399-qos", "syscon";
reg = <0x0 0xffac0080 0x0 0x20>;
};
power-management@ff310000 {
compatible = "rockchip,rk3399-pmu", "syscon", "simple-mfd";
reg = <0x0 0xff310000 0x0 0x1000>;
power-controller {
compatible = "rockchip,rk3399-power-controller";
#power-domain-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
/* These power domains are grouped by VD_CENTER */
power-domain@RK3399_PD_IEP {
reg = <RK3399_PD_IEP>;
clocks = <&cru ACLK_IEP>,
<&cru HCLK_IEP>;
pm_qos = <&qos_iep>;
#power-domain-cells = <0>;
};
power-domain@RK3399_PD_RGA {
reg = <RK3399_PD_RGA>;
clocks = <&cru ACLK_RGA>,
<&cru HCLK_RGA>;
pm_qos = <&qos_rga_r>,
<&qos_rga_w>;
#power-domain-cells = <0>;
};
power-domain@RK3399_PD_VCODEC {
reg = <RK3399_PD_VCODEC>;
clocks = <&cru ACLK_VCODEC>,
<&cru HCLK_VCODEC>;
pm_qos = <&qos_video_m0>;
#power-domain-cells = <0>;
};
power-domain@RK3399_PD_VDU {
reg = <RK3399_PD_VDU>;
clocks = <&cru ACLK_VDU>,
<&cru HCLK_VDU>;
pm_qos = <&qos_video_m1_r>,
<&qos_video_m1_w>;
#power-domain-cells = <0>;
};
power-domain@RK3399_PD_VIO {
reg = <RK3399_PD_VIO>;
#power-domain-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
power-domain@RK3399_PD_HDCP {
reg = <RK3399_PD_HDCP>;
clocks = <&cru ACLK_HDCP>,
<&cru HCLK_HDCP>,
<&cru PCLK_HDCP>;
pm_qos = <&qos_hdcp>;
#power-domain-cells = <0>;
};
};
};
};
};
|
